Home / 66,018.21-98,865.78-59,621.23

Finding the Fourth Proportional to 66,018.21, 98,865.78 and 59,621.23

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Solution

The fourth proportional to 66,018.21, 98,865.78 and 59,621.23 is: 89,285.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,018.21 : 98,865.78 = 59,621.23 : x
  2. Step 2: Convert to fraction form
    66,018.21/98,865.78 = 59,621.23/x
  3. Step 3: Cross multiply
    66,018.21x = 98,865.78 × 59,621.23
  4. Step 4: Simplify right side
    66,018.21x = 5,894,499,408.51
  5. Step 5: Solve for x
    x = 5,894,499,408.51/66,018.21
  6. Step 6: Final answer
    x = 89,285.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.